" I will always love Africa, but I miss going on voyages with you, Doctor."

“我会永远爱非洲，但我想念和你一起航行的日子，博士。”

And port of call, in other words, is a place where the ships, they stop on voyages.

换句话说，停靠港是船只在航行中停靠的地方。

We find that on voyages that last for less than a year, you see mostly negative effects due to diversity.

我们发现，在持续不到一年的航行中，您会看到大多数由于多样性而产生的负面影响。

Usually it's plural, we say " travels" : " My travels have taken me to Europe and South America, " meaning I have traveled to Europe and South America;I have taken trips, I have gone on voyages, I have gone on journeys.

通常是复数形式，我们说“旅行” ：“My travels have thought me to Europe and South America” ，意思是我去过欧洲和南美； I have taken trips, I have gone on voyages, I have gone on journeys。